33. Reminding GRSG experts about the purpose of ECE/TRANS/WP.29/GRSG/2016/6, the expert from ISO introduced GRSG-110-05 proposing further amendments to UN Regulation No. 110 aimed at harmonizing the requirements for CNG cylinders with those of standard ISO 11439:2013. GRSG welcomed the work done by ISO. GRSG noted a number of study reservations and the request for a detailed justification of only referencing to ISO standards instead of reproducing the testing provisions. Following the recommendation by WP.29, GRSG underlined the need to have a static referencing of the international standards referred to in the proposal. A number of experts requested to have free access to these standards. The secretariat offered the possibility to make a copy of these standards available on the GRSG website, but protected by a password which will be circulated to the GRSG experts prior to the forthcoming GRSG session.

34. Following the discussion, the expert from ISO announced his intention to provide the secretariat with a copy of the most important standards referenced to in his proposal. He volunteered to submit in due time a revised official document for amending UN Regulation No. 110, taking into account the comments received.

32. The expert from ISO presented an overview of the activities of his organization on specific aspects for gaseous fuels (GRSG-111-25). He introduced GRSG-111-02 with the rationale of all amendments proposed to UN Regulation No. 110 in document ECE/TRANS/WP.29/GRSG/2016/22 superseding ECE/TRANS/WP.29/GRSG/2016/6. GRSG welcomed GRSG-111-03 listing the copies of all ISO standards referenced to in UN Regulation No. 110 on CNG/LNG vehicles. A number of experts raised a concern on the dynamic referencing of international standards and expressed their preference for a static referencing, mainly for legal purposes. GRSG reviewed the document and agreed on the need to adopt the proposal as a new 03 series of amendments and to insert transitional provisions triggered of the 1 September. The expert from France asked for more detailed information on each of the proposed amendments, especially on the level of stringency and their impact on technical services. The expert from CLEPA underlined the need to also insert transitional provisions for existing type approvals and sufficient lead time for suppliers to upgrade them.

33. Following study reservations by the experts from Germany, France and CLEPA, GRSG decided to resume consideration of the proposal at its next session in April 2017 based on a revised document to be submitted by ISO. The Chair invited all experts to send their written comments on GRSG-111-02-Rev.1 in due time to the experts from ISO or NGV Global.

39. The expert from France presented GRSG-110-23 introducing new provisions for the use of natural gas refrigeration systems to vehicles propelled by natural gas (CNG or LNG). GRSG noted general support on the proposal and agreed to resume consideration of this subject at its next session in October 2016. For that purpose, the secretariat was requested to circulate GRSG-110-23 with an official symbol.

29. The expert from France proposed incorporating new provisions concerning refrigeration systems for cooling the cargo compartment which are connected to the compressed natural gas (CNG) and/or liquefied natural gas (LNG) system (ECE/TRANS/WP.29/GRSG/2016/16). The expert from Japan raised concerns about risks of increased filling cycles of CNG cylinders due to a higher filling frequency. He suggested supplementing the proposed provisions with additional test conditions to not exceed the maximum number of filling cycles of CNG cylinders (GRSG-111-18). A number of experts were of the opinion that the number of filling cycles of CNG cylinders specified in the test requirements of UN Regulation No. 110 would be sufficient to cover the higher filling frequencies. GRSG did not support the additional test conditions proposed by Japan.

30. GRSG adopted ECE/TRANS/WP.29/GRSG/2016/16 as amended below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2017 sessions, as draft Supplement 6 to the 01 series of amendments to UN Regulation No. 110.

Paragraph 18.1.7.1., replace “compartiment des marchandises” by “compartiment de chargement”.
Paragraph 18.5.1.3., subparagraphs (b) and (c), replace “compartiment des marchandises” by “compartiment de chargement” and “contrôle électronique” by “contrôle électronique GNC/GNL” (two times).

35. The expert from the Netherlands introduced GRSG-110-26 (superseding ECE/TRANS/WP.29/GRSG/2016/8) proposing an amendment to UN Regulation No. 110 to allow Class 0 hoses with couplings using sealing technologies other than those with a 45° cone and, thus, to avoid design restrictive requirements. The proposal received a number of comments.

36. GRSG adopted the proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as part (see para. 32 above) of draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110.

Annex 4B, paragraph 1.6.2.2., amend to read:

“1.6.2.2. The interface type for the hose coupling shall be:

(a) sealing cone of swivel-nut type of the type with a half vertical angle of 45°, or
(b) other couplings complying with the tests described in paragraph 1.7., as well as the tests mentioned in Annexes 5A and 5B.

Couplings shall have complementary counterparts."

31. The expert from OICA recalled the discussion at the previous GRSG session on ECE/TRANS/WP.29/GRSG/2015/36 proposing to amend the provisions of UN Regulation No. 67 to allow the installation of autonomous CNG heaters for the heating of the engine. The expert from Germany presented GRSG-110-27 further clarifying the text of paragraph 18.5.1.3.

32. GRSG adopted the proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110.

Paragraph 18.5.1.3., amend to read:
“18.5.1.3. Notwithstanding the provisions of paragraph 18.5.1.2.
(a) the automatic cylinder valve may stay in an open position during commanded stop phases, and
(b) in the case where a fire alarm system is installed in the compartment where a CNG combustion heater is located, the automatic cylinder valve(s) may be opened by an electronic control unit for the purpose of permitting its operation to warm the engine coolant.”

33. Reminding GRSG experts about the purpose of ECE/TRANS/WP.29/GRSG/2016/6, the expert from ISO introduced GRSG-110-05 proposing further amendments to UN Regulation No. 110 aimed at harmonizing the requirements for CNG cylinders with those of standard ISO 11439:2013. GRSG welcomed the work done by ISO. GRSG noted a number of study reservations and the request for a detailed justification of only referencing to ISO standards instead of reproducing the testing provisions. Following the recommendation by WP.29, GRSG underlined the need to have a static referencing of the international standards referred to in the proposal. A number of experts requested to have free access to these standards. The secretariat offered the possibility to make a copy of these standards available on the GRSG website, but protected by a password which will be circulated to the GRSG experts prior to the forthcoming GRSG session.

34. Following the discussion, the expert from ISO announced his intention to provide the secretariat with a copy of the most important standards referenced to in his proposal. He volunteered to submit in due time a revised official document for amending UN Regulation No. 110, taking into account the comments received.

32. The expert from ISO presented an overview of the activities of his organization on specific aspects for gaseous fuels (GRSG-111-25). He introduced GRSG-111-02 with the rationale of all amendments proposed to UN Regulation No. 110 in document ECE/TRANS/WP.29/GRSG/2016/22 superseding ECE/TRANS/WP.29/GRSG/2016/6. GRSG welcomed GRSG-111-03 listing the copies of all ISO standards referenced to in UN Regulation No. 110 on CNG/LNG vehicles. A number of experts raised a concern on the dynamic referencing of international standards and expressed their preference for a static referencing, mainly for legal purposes. GRSG reviewed the document and agreed on the need to adopt the proposal as a new 03 series of amendments and to insert transitional provisions triggered of the 1 September. The expert from France asked for more detailed information on each of the proposed amendments, especially on the level of stringency and their impact on technical services. The expert from CLEPA underlined the need to also insert transitional provisions for existing type approvals and sufficient lead time for suppliers to upgrade them.

33. Following study reservations by the experts from Germany, France and CLEPA, GRSG decided to resume consideration of the proposal at its next session in April 2017 based on a revised document to be submitted by ISO. The Chair invited all experts to send their written comments on GRSG-111-02-Rev.1 in due time to the experts from ISO or NGV Global.

35. The expert from the Netherlands introduced GRSG-110-26 (superseding ECE/TRANS/WP.29/GRSG/2016/8) proposing an amendment to UN Regulation No. 110 to allow Class 0 hoses with couplings using sealing technologies other than those with a 45° cone and, thus, to avoid design restrictive requirements. The proposal received a number of comments.

36. GRSG adopted the proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as part (see para. 32 above) of draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110.

Annex 4B, paragraph 1.6.2.2., amend to read:

“1.6.2.2. The interface type for the hose coupling shall be:

(a) sealing cone of swivel-nut type of the type with a half vertical angle of 45°, or
(b) other couplings complying with the tests described in paragraph 1.7., as well as the tests mentioned in Annexes 5A and 5B.

Couplings shall have complementary counterparts."

29. The expert from ISO presented GRSG-109-14 on the progress of work within the ISO working group on refueling connector and fuel components for vehicles propelled by Liquefied Natural Gas (LNG). He underlined the request from original equipment manufacturers to update UN Regulation No. 67 with respect to LPG fuel lines and welding requirements.

32. Referring to his presentation (GRSG-109-14) given under agenda item 8 (para. 28 above), the expert from ISO volunteered to submit for the next GRSG session an official document proposing to amend the provisions of Annex 4B of UN Regulation No. 110, including the correction of some errors in Annexes 4A and 4H.

37. The expert from the Netherlands presented ECE/TRANS/WP.29/GRSG/2016/9 aimed at correcting a typographical error and clarifying the current provisions of the Regulation. He also introduced ECE/TRANS/WP.29/GRSG/2016/10 proposing to insert provisions for LNG fuel connector as specified in ISO 12617:2015. Both documents received a number of comments. The expert from France raised a study reservation on the reference to the ISO standard in paragraph 2.2. of Annex 4J. Following the discussion, GRSG adopted both proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as part (see paras. 32 and 36 above) of draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110:

Paragraph 7.1., correct “paragraphs 8.12. to 8.21.” to read “paragraphs 8.12. to 8.22.”.

Annex 4A, paragraph 4.2.4., correct “of Class 1 and Class 2” to read “of Class 2”.

Annex 4H, paragraph 2.2., correct “than 5 seconds” to read “than 2 seconds”.

Annex 4J
Paragraph 2.2., shall be deleted.

Paragraph 3.1.6., correct “shall be not be” to read “shall not be”.

Insert new paragraphs 4. and 4.1., to read:
“4. LNG filling receptacle dimensions
4.1. Figure 1 shows the dimensions of the LNG filling receptacle.

Figure 1
Dimensions of the receptacle
[Figure provided in the session report.]
"

38. GRSG agreed to resume consideration at the next session of GRSG on the ISO reference on the basis of a revised proposal jointly prepared by the Netherlands and NGV Global, taking into account the comments received.

37. The expert from the Netherlands presented ECE/TRANS/WP.29/GRSG/2016/9 aimed at correcting a typographical error and clarifying the current provisions of the Regulation. He also introduced ECE/TRANS/WP.29/GRSG/2016/10 proposing to insert provisions for LNG fuel connector as specified in ISO 12617:2015. Both documents received a number of comments. The expert from France raised a study reservation on the reference to the ISO standard in paragraph 2.2. of Annex 4J. Following the discussion, GRSG adopted both proposal as reproduced below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2016 sessions, as part (see paras. 32 and 36 above) of draft Supplement 5 to the 01 series of amendments to UN Regulation No. 110:

Paragraph 7.1., correct “paragraphs 8.12. to 8.21.” to read “paragraphs 8.12. to 8.22.”.

Annex 4A, paragraph 4.2.4., correct “of Class 1 and Class 2” to read “of Class 2”.

Annex 4H, paragraph 2.2., correct “than 5 seconds” to read “than 2 seconds”.

Annex 4J
Paragraph 2.2., shall be deleted.

Paragraph 3.1.6., correct “shall be not be” to read “shall not be”.

Insert new paragraphs 4. and 4.1., to read:
“4. LNG filling receptacle dimensions
4.1. Figure 1 shows the dimensions of the LNG filling receptacle.

Figure 1
Dimensions of the receptacle
[Figure provided in the session report.]
"

38. GRSG agreed to resume consideration at the next session of GRSG on the ISO reference on the basis of a revised proposal jointly prepared by the Netherlands and NGV Global, taking into account the comments received.